.middle {
    margin: 50px;
    display: flex;
    justify-content: center;
}

.middle > div {
    width: 80%;
    border: 1px solid red;
}

.middle > div > div:first-child {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid red;
}

.middle > div > div:first-child > div:first-child {
    color: rgb(230, 145, 55);
    font-size: 30px;
    padding: 10px;
}

.middle > div > div:first-child > div:nth-child(2) {
    display: flex;
    justify-content: flex-end;
    font-size: 30px;
}

.middle > div > div:first-child > div:nth-child(2) > div {
    padding: 0 20px;
    display: flex;
    align-items: center;
}

.middle > div > div:first-child > div:nth-child(2) > div:hover {
    background-color: rgb(230, 145, 55);
    color: white;
}

/*产品内容*/
.middle > div > div:nth-child(2) {
    padding: 10px;
    display: flex;
    flex-wrap: wrap;
}

.middle > div > div:nth-child(2) > div {
    width: 230px;
    border: 1px solid red;
    margin-right: 10px;
}

.middle > div > div:nth-child(2) > div img {
    width: 100%;
    height: 100%;
}

.middle > div > div:nth-child(2) > div > div:nth-child(2) > div:first-child, .middle > div > div:nth-child(2) > div > div:nth-child(2) > div:nth-child(2) > div:first-child {
    font-weight: bold;
}

.middle > div > div:nth-child(2) > div > div:nth-child(2) > div:nth-child(2) > div {
    display: inline;
}

.middle > div > div:nth-child(2) > div > div:nth-child(2) > div:nth-child(2) > div:nth-child(2) {
    color: red;
}